Inventor
OIKAWA TADAAKI
KR51 patents
⚠️ This page may combine multiple inventors who share the name “OIKAWA TADAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI ELECTRIC CO LTD
17 patentsUS7183011B2Feb 27, 2007
Magnetic recording medium
FUJI ELECTRIC CO LTD24 citations92
US7067206B2Jun 27, 2006
Perpendicular magnetic recording medium and a method of manufacturing the same
FUJI ELECTRIC CO LTD34 citations92
US6794028B2Sep 21, 2004
Perpendicular magnetic recording medium and a method of manufacturing the same
FUJI ELECTRIC CO LTD39 citations92
US6716542B2Apr 6, 2004
Sputtering target for production of a magnetic recording medium
FUJI ELECTRIC CO LTD25 citations92
US6589669B2Jul 8, 2003
Magnetic recording medium and manufacturing method for the same
FUJI ELECTRIC CO LTD19 citations92
US6667116B1Dec 23, 2003
Magnetic recording media, the manufacturing method for the same, and magnetic recording device
FUJI ELECTRIC CO LTD27 citations91
US7147942B2Dec 12, 2006
Perpendicular magnetic recording medium and method of manufacturing the same and product thereof
FUJI ELECTRIC CO LTD11 citations84
US6767651B2Jul 27, 2004
Magnetic recording medium, method for manufacturing a magnetic recording medium and magnetic recording device
FUJI ELECTRIC CO LTD19 citations84
US6716543B2Apr 6, 2004
Magnetic recording medium and method for producing same
FUJI ELECTRIC CO LTD19 citations84
US6696172B2Feb 24, 2004
Recording medium and method for manufacturing the same
FUJI ELECTRIC CO LTD17 citations84
US6673475B2Jan 6, 2004
Magnetic recording medium and manufacturing method therefore
FUJI ELECTRIC CO LTD19 citations84
US6899964B2May 31, 2005
Magnetic recording medium and method for manufacturing the same
FUJI ELECTRIC CO LTD8 citations74
US8034470B2Oct 11, 2011
Perpendicular magnetic recording medium and method of manufacturing the medium
FUJI ELECTRIC CO LTD6 citations63
US6994924B2Feb 7, 2006
Magnetic recording medium and manufacture method therefor
FUJI ELECTRIC CO LTD4 citations63
US6826825B2Dec 7, 2004
Method for manufacturing a magnetic recording medium
FUJI ELECTRIC CO LTD2 citations63
US8691402B2Apr 8, 2014
Perpendicular magnetic recording medium
FUJI ELECTRIC CO LTD1 citations52
US7205020B2Apr 17, 2007
Magnetic recording medium and method for manufacturing same
FUJI ELECTRIC CO LTD1 citations52
KIOXIA CORP
15 patentsUS11329215B2May 10, 2022
Magnetic memory device
KIOXIA CORP4 citations73
US11316095B2Apr 26, 2022
Magnetic device which improves write error rate while maintaining retention properties
KIOXIA CORP3 citations73
US11404098B2Aug 2, 2022
Memory device
KIOXIA CORP3 citations72
US12356866B2Jul 8, 2025
Magnetic memory device
KIOXIA CORP0 citations62
US12089505B2Sep 10, 2024
Magnetic memory device
KIOXIA CORP0 citations62
US12048252B2Jul 23, 2024
Magnetoresistive memory device
KIOXIA CORP0 citations62
US11832528B2Nov 28, 2023
Magnetic memory device
KIOXIA CORP0 citations62
US11563168B2Jan 24, 2023
Magnetic memory device that suppresses diffusion of elements
KIOXIA CORP1 citations62
US11495740B2Nov 8, 2022
Magnetoresistive memory device
KIOXIA CORP1 citations62
US12514129B2Dec 30, 2025
Magnetic memory device
KIOXIA CORP0 citations61
US12426273B2Sep 23, 2025
Magnetoresistance memory device and method for manufacturing magnetoresistance memory device
KIOXIA CORP0 citations60
US12125510B2Oct 22, 2024
Magnetoresistance memory device
KIOXIA CORP0 citations59
US12329038B2Jun 10, 2025
Magnetoresistance memory device
KIOXIA CORP0 citations52
US12063869B2Aug 13, 2024
Magnetic memory device
KIOXIA CORP0 citations52
US12284811B2Apr 22, 2025
Magnetic memory device
KIOXIA CORP0 citations51
TOSHIBA MEMORY CORP
11 patentsUS9947862B2Apr 17, 2018
Magnetoresistive memory device
TOSHIBA MEMORY CORP16 citations92
US10388343B2Aug 20, 2019
Magnetoresistive element and magnetic memory
TOSHIBA MEMORY CORP18 citations86
US11127445B2Sep 21, 2021
Magnetic device
TOSHIBA MEMORY CORP11 citations85
US10873021B2Dec 22, 2020
Magnetic device and manufacturing method of magnetic device
TOSHIBA MEMORY CORP12 citations85
US10840434B2Nov 17, 2020
Storage device
TOSHIBA MEMORY CORP13 citations85
US10263178B2Apr 16, 2019
Magnetic memory device
TOSHIBA MEMORY CORP15 citations85
US10510950B2Dec 17, 2019
Magnetoresistive memory device
TOSHIBA MEMORY CORP12 citations84
US10468170B2Nov 5, 2019
Magnetic device
TOSHIBA MEMORY CORP12 citations84
US11217288B2Jan 4, 2022
Magnetic device and memory device
TOSHIBA MEMORY CORP3 citations73
US11201189B2Dec 14, 2021
Semiconductor device having rare earth oxide layer and method of manufacturing the same
TOSHIBA MEMORY CORP4 citations73
US10490732B2Nov 26, 2019
Magnetic memory device with sidewall layer containing boron and manufacturing method thereof
TOSHIBA MEMORY CORP6 citations73
FUJI ELEC DEVICE TECH CO LTD
4 patentsUS7247395B2Jul 24, 2007
Magnetic recording medium exhibiting low noise and high coercive force
FUJI ELEC DEVICE TECH CO LTD7 citations74
US7183013B2Feb 27, 2007
Magnetic recording medium and manufacturing method thereof
FUJI ELEC DEVICE TECH CO LTD6 citations63
USRE41282EApr 27, 2010
Perpendicular magnetic recording medium and a method of manufacturing the same
FUJI ELEC DEVICE TECH CO LTD3 citations62
US8039133B2Oct 18, 2011
Magnetic recording medium and method for manufacturing the same
FUJI ELEC DEVICE TECH CO LTD0 citations52
FUJI ELECTRIC CO LD
1 patentSAMSUNG ELECTRONICS CO LTD
1 patentKITAKAMI OSAMU
1 patentShowing the top 50 of 51 patents by PatentIndex Score.